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Effect of Fabrication Parameters on Localized Surface Plasmon Resonance Property of Gold Nanorod

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Abstract:

Gold nanorods (AuNRs) are prepared through seeded growth approach. Synthesis parameters of the amount of cetyltrimethylammonium bromide (CTAB), and concentration of ascorbic acid (AA) were studied. It is found that as the concentration of CTAB increases, the yield of NRs increases. As the concentration of AA increased from 0.05M to 0.2M, LSP shifts to longer wavelength but upon further increasing the concentration, LSP shifts back to shorter wavelength. A linear relationship between LSPR wavelength and surrounding medium dielectric constant is obtained, which is in good agreement with the theoretical results.

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Periodical:

Advanced Materials Research (Volumes 756-759)

Pages:

124-127

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.756-759.124

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Online since:

September 2013

Authors:

Gai Ge Zheng, Lin Hua Xu, Min Lai

Keywords:

Gold Nanorod, Localized Surface Plasmon Resonance, Seeded Growth Method

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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